#include<bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define il inline
using namespace std;
namespace starlit{
	int n,m;
	const int maxn=500;
	int a[maxn],b[maxn];
	
	signed main(){
		cin>>n>>m;
		cout<<0; 
		return 0;
	}
}
signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	
	freopen("employ.in","r",stdin);
	freopen("employ.out","w",stdout);
	
	starlit::main();
} 
